<template>
  <el-row :gutter="20">
    <el-col :span="5">
      <el-tree ref="categoryTree" :data="data" :props="defaultProps" node-key="id" @node-click="nodeClick">
        <span class="custom-tree-node" slot-scope="{node}">
          <span>{{node.label}}</span>
        </span>
      </el-tree>
    </el-col>
    <el-col :span="19">
      <div class="mod-config">
        <el-form :inline="true" :model="dataForm" @keyup.enter.native="getDataList()">
          <el-form-item>
            <el-input v-model="dataForm.key" placeholder="参数名" clearable></el-input>
          </el-form-item>
          <el-form-item>
            <el-button @click="getDataList()">查询</el-button>
            <el-button v-if="isAuth('commodity:attr:save')" type="primary" @click="addOrUpdateHandle()">新增</el-button>
            <el-button v-if="isAuth('commodity:attr:delete')" type="danger" @click="deleteHandle()" :disabled="dataListSelections.length <= 0">批量删除</el-button>
            <el-button type="Success" @click="getDataList(true)">展示全部</el-button>
          </el-form-item>
        </el-form>
        <el-table
          :data="dataList"
          border
          v-loading="dataListLoading"
          @selection-change="selectionChangeHandle"
          style="width: 100%;">
          <el-table-column
            type="selection"
            header-align="center"
            align="center"
            width="50">
          </el-table-column>
          <el-table-column
            prop="id"
            header-align="center"
            align="center"
            label="id">
          </el-table-column>
          <el-table-column
            prop="name"
            header-align="center"
            align="center"
            label="组名">
          </el-table-column>
          <el-table-column
            prop="sort"
            header-align="center"
            align="center"
            label="排序">
          </el-table-column>
          <el-table-column
            prop="description"
            header-align="center"
            align="center"
            label="说明">
          </el-table-column>
          <el-table-column
            prop="icon"
            header-align="center"
            align="center"
            label="组图标">
          </el-table-column>
          <el-table-column
            prop="categoryId"
            header-align="center"
            align="center"
            label="所属分类 id">
          </el-table-column>
          <el-table-column
            fixed="right"
            header-align="center"
            align="center"
            width="150"
            label="操作">
            <template slot-scope="scope">
              <el-button type="text" size="small" @click="relateAttrHandle(scope.row.id)">关联</el-button>
              <el-button type="text" size="small" @click="addOrUpdateHandle(scope.row.id)">修改</el-button>
              <el-button type="text" size="small" @click="deleteHandle(scope.row.id)">删除</el-button>
            </template>
          </el-table-column>
        </el-table>
        <el-pagination
          @size-change="sizeChangeHandle"
          @current-change="currentChangeHandle"
          :current-page="pageIndex"
          :page-sizes="[10, 20, 50, 100]"
          :page-size="pageSize"
          :total="totalPage"
          layout="total, sizes, prev, pager, next, jumper">
        </el-pagination>
        <!-- 弹窗, 新增 / 修改 -->
        <add-or-update v-if="addOrUpdateVisible" ref="addOrUpdate" @refreshDataList="getDataList" />
        <RelationUpdate v-if="relationVisible" ref="relationUpdate" @refreshData="getDataList" />
      </div>
    </el-col>
  </el-row>
</template>

<script>
  import AddOrUpdate from './attr-add-or-update'
  import RelationUpdate from './attrgroup-attr-relation.vue'
  export default {
    data () {
      return {
        dataForm: {
          key: ''
        },
        dataList: [],
        pageIndex: 1,
        pageSize: 10,
        totalPage: 0,
        dataListLoading: false,
        dataListSelections: [],
        addOrUpdateVisible: false,
        data: [],
        defaultProps: {
          children: 'childrenCategories',
          label: 'name'
        },
        // 用来存储点击的三级分类id
        catId: 0,
        // 用来控制关联弹窗的显示与否
        relationVisible: false
      }
    },
    components: {
      AddOrUpdate,
      RelationUpdate
    },
    activated () {
      this.getTreeList()
      this.getDataList(true)
    },
    methods: {
      // 用于处理属性分组与属性的关联关系
      relateAttrHandle (groupId) {
        this.relationVisible = true
        this.$nextTick(() => {
          this.$refs.relationUpdate.init(groupId)
        })
      },
      nodeClick (data) {
        if (data.catLevel === 3) {
          this.catId = data.id
          this.getDataList()
        }
      },
      getDataList (flag) {
        this.dataListLoading = true
        this.$http({
          url: this.$http.adornUrl('/commodity/attr/list'.concat(flag ? '' : `/${this.catId}`)),
          method: 'get',
          params: this.$http.adornParams({
            'page': this.pageIndex,
            'limit': this.pageSize,
            'key': this.dataForm.key
          })
        }).then(({data}) => {
          if (data && data.code === 0) {
            this.dataList = data.page.list
            this.totalPage = data.page.totalCount
          } else {
            this.dataList = []
            this.totalPage = 0
          }
          this.dataListLoading = false
        })
      },
      // 获取数据列表
      getTreeList () {
        this.$http({
          url: this.$http.adornUrl('/commodity/category/list/tree'),
          method: 'get'
        }).then(({ data }) => {
          if (data && data.code === 0) {
            this.data = data.data
          }
        })
      },
      // 每页数
      sizeChangeHandle (val) {
        this.pageSize = val
        this.pageIndex = 1
        this.getDataList()
      },
      // 当前页
      currentChangeHandle (val) {
        this.pageIndex = val
        this.getDataList()
      },
      // 多选
      selectionChangeHandle (val) {
        this.dataListSelections = val
      },
      // 新增 / 修改
      addOrUpdateHandle (id) {
        this.addOrUpdateVisible = true
        this.$nextTick(() => {
          this.$refs.addOrUpdate.init(id)
        })
      },
      // 删除
      deleteHandle (id) {
        const ids = id ? [id] : this.dataListSelections.map(item => {
          return item.id
        })
        this.$confirm(`确定对[id=${ids.join(',')}]进行[${id ? '删除' : '批量删除'}]操作?`, '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(() => {
          this.$http({
            url: this.$http.adornUrl('/commodity/attr/delete'),
            method: 'post',
            data: this.$http.adornData(ids, false)
          }).then(({data}) => {
            if (data && data.code === 0) {
              this.$message({
                message: '操作成功',
                type: 'success',
                duration: 1500,
                onClose: () => {
                  this.getDataList()
                }
              })
            } else {
              this.$message.error(data.msg)
            }
          })
        })
      }
    }
  }
</script>
